Vietnam's private carrier Air Mekong will add three weekly flights to the route between Hanoi and Da Lat, starting August 3.
The additional flights will be offered on Wednesday, Friday and Sunday, the airline said.
In April, Air Mekong began offering non-stop flights from Hanoi to the southern island of Phu Quoc--making it the longest domestic haul available.
Last October, Air Mekong took its first flight and has grown to include 14 domestic routes. The carrier plans to add 50 more planes to its fleet by 2014, said news website VnExpress in an April report.
In related news, the Taiwanese carrier Far Eastern Airlines will lauch non-stop flights to Da Nang.
The new flights will depart once every five days.